SparkFun Ethernet Adapter for Teensy

The SparkFun Ethernet Adapter for Teensy adds easy wired networking to the Teensy 4.1 with a pre-soldered RJ45 connector and transformer, simplifying assembly while keeping full Ethernet functionality.

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The SparkFun Ethernet Adapter for Teensy is a compact, single-board solution that makes it easy to add wired networking to a Teensy 4.1. It includes a pre-soldered RJ45 connector, B10601S Ethernet transformer, and 2×3 (2mm) header, removing the most difficult assembly steps found in the older multipart Ethernet Kit.

This adapter gives your Teensy 4.1 a straightforward way to connect to the Internet over Ethernet. It combines the functionality of the original Ethernet Kit into one board, reducing setup time and simplifying the hardware layout.

Please note that this board includes only the adapter itself. To complete the connection, you will need a Teensy 4.1, a 6-pin (2×3) ribbon cable, and a 2×3 (2mm pitch) male header, which must be soldered to the Teensy. After assembly, the adapter provides a reliable, ready-to-use wired network interface.

Please note: Basic soldering is required to use this board.

Features

• RJ45 Ethernet Connector
• B10601S Ethernet Transformer
• 2x3 Male Header (2mm spacing)

Resources

• Schematic
• KiCad Files
• Board Dimensions
• Quick Start Guide
• GitHub Repository

Package Contents

• 1x SparkFun Ethernet Adapter for Teensy